4x-4>20
Step 1: Add four to both sides
4x-4+4>20+4
4x>24
Step 2: Divide both sides by 4
4x divided by 4 and 24 divided by 4
Answer: x>6
Kahal accidentally subtracted instead of adding. He made a mistake in step 2.
Y=mx+b
b= y-intercept
-5=2/3x+b
answer: y=2/3x-5
Bob has to tile a rectangular floor that is 10 by 20 feet
he has tiles with tiles that are 1 foot square
how many tiles does he need
area=legnth times wdith=10 times 20=200
200 square feet=200 tiles
